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Sony Corp. is adding a touch-screen to its cheapest electronic-book reader, the Reader Pocket Edition.
While other eReader makers have been cutting prices, Sony is increasing the price of the new model by $29, to $179.

But the company thinks it has good reason to do so. The new eReader uses an infrared sensor to read finger swipes or taps from a stylus that is included, eliminating the need for a special overlay that reduces clarity.

Sony is also upgrading its larger-screen Reader models as well. Sony says the new version of the Touch Edition will have longer battery life. The Daily Edition will now support Wi-Fi.